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1 /* |
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2 * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package com.sun.xml.internal.stream.buffer; |
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27 |
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28 import com.sun.xml.internal.stream.buffer.sax.SAXBufferProcessor; |
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29 import java.io.ByteArrayInputStream; |
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30 import javax.xml.transform.sax.SAXSource; |
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31 import org.xml.sax.InputSource; |
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32 import org.xml.sax.XMLReader; |
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33 |
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34 /** |
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35 * A JAXP Source implementation that supports the parsing |
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36 * of {@link XMLStreamBuffer} for use by applications that expect a Source. |
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37 * |
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38 * <p> |
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39 * The derivation of XMLStreamBufferSource from SAXSource is an implementation |
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40 * detail. |
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41 * |
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42 * <p>Applications shall obey the following restrictions: |
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43 * <ul> |
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44 * <li>The setXMLReader and setInputSource shall not be called.</li> |
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45 * <li>The XMLReader object obtained by the getXMLReader method shall |
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46 * be used only for parsing the InputSource object returned by |
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47 * the getInputSource method.</li> |
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48 * <li>The InputSource object obtained by the getInputSource method shall |
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49 * be used only for being parsed by the XMLReader object returned by |
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50 * the getXMLReader method.</li> |
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51 * </ul> |
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52 */ |
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53 public class XMLStreamBufferSource extends SAXSource { |
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54 protected XMLStreamBuffer _buffer; |
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55 protected SAXBufferProcessor _bufferProcessor; |
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56 |
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57 /** |
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58 * XMLStreamBufferSource constructor. |
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59 * |
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60 * @param buffer the {@link XMLStreamBuffer} to use. |
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61 */ |
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62 public XMLStreamBufferSource(XMLStreamBuffer buffer) { |
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63 super(new InputSource( |
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64 new ByteArrayInputStream(new byte[0]))); |
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65 setXMLStreamBuffer(buffer); |
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66 } |
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67 |
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68 /** |
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69 * Get the {@link XMLStreamBuffer} that is used. |
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70 * |
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71 * @return the {@link XMLStreamBuffer}. |
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72 */ |
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73 public XMLStreamBuffer getXMLStreamBuffer() { |
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74 return _buffer; |
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75 } |
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76 |
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77 /** |
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78 * Set the {@link XMLStreamBuffer} to use. |
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79 * |
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80 * @param buffer the {@link XMLStreamBuffer}. |
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81 */ |
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82 public void setXMLStreamBuffer(XMLStreamBuffer buffer) { |
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83 if (buffer == null) { |
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84 throw new NullPointerException("buffer cannot be null"); |
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85 } |
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86 _buffer = buffer; |
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87 |
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88 if (_bufferProcessor != null) { |
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89 _bufferProcessor.setBuffer(_buffer,false); |
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90 } |
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91 } |
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92 |
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93 public XMLReader getXMLReader() { |
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94 if (_bufferProcessor == null) { |
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95 _bufferProcessor = new SAXBufferProcessor(_buffer,false); |
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96 setXMLReader(_bufferProcessor); |
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97 } else if (super.getXMLReader() == null) { |
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98 setXMLReader(_bufferProcessor); |
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99 } |
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100 |
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101 return _bufferProcessor; |
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102 } |
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103 } |